Base | Representation |
---|---|
bin | 110111111110110111… |
… | …0110000100010111001 |
3 | 102111022102001002100220 |
4 | 1233331232300202321 |
5 | 3432203034310410 |
6 | 131121225250253 |
7 | 11454121503510 |
oct | 1577556604271 |
9 | 374272032326 |
10 | 120221010105 |
11 | 46a926982a9 |
12 | 1b371933989 |
13 | b44bc19791 |
14 | 5b66837677 |
15 | 31d95b0070 |
hex | 1bfdbb08b9 |
120221010105 has 16 divisors (see below), whose sum is σ = 219832704384. Its totient is φ = 54958176000.
The previous prime is 120221010083. The next prime is 120221010127. The reversal of 120221010105 is 501010122021.
It is an interprime number because it is at equal distance from previous prime (120221010083) and next prime (120221010127).
It is not a de Polignac number, because 120221010105 - 27 = 120221009977 is a prime.
It is a super-2 number, since 2×1202210101052 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572480896 + ... + 572481105.
It is an arithmetic number, because the mean of its divisors is an integer number (13739544024).
Almost surely, 2120221010105 is an apocalyptic number.
120221010105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
120221010105 is a deficient number, since it is larger than the sum of its proper divisors (99611694279).
120221010105 is a wasteful number, since it uses less digits than its factorization.
120221010105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1144962016.
The product of its (nonzero) digits is 40, while the sum is 15.
Adding to 120221010105 its reverse (501010122021), we get a palindrome (621231132126).
The spelling of 120221010105 in words is "one hundred twenty billion, two hundred twenty-one million, ten thousand, one hundred five".
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